Hitachi XP P9500 User Manual page 39

Table 2-4: Functionality of HDLM Programs
Program name
HDLM command
HDLM utility
HDLM manager
HDLM alert driver
HDLM driver
Provides the command, which enables you to:
dlnkmgr
• Manage paths
• Display error information
• Set up the HDLM operating environment
Provides the HDLM utility, which enables you to:
• Collect error information
• Define HDLM device configuration information
• Make an HDLM device available as a boot disk
• Clear HDLM persistent reservation
• Specify settings for the HDLM filter driver
• Perform tasks that are required after the installation of HDLM
• Re-register HDLM information
• Collect information about errors that occurred during the installation
of HDLM
• Install HDLM
Provides the HDLM manager, which enables you to:
• Configure the HDLM operating environment
• Request path health checks and automatic failbacks to be performed
• Collect error log data
Reports the log information collected by the HDLM driver to the HDLM
manager. The driver name is
Controls all the HDLM functions, manages paths, and detects errors. The
HDLM driver consists of the following:
• Core logic component
Controls the basic functionality of HDLM.
• Filter component
Sends and receives I/O data. The driver name is
2. HDLM Functions
Functions
.
sddlmadrv
sddlmfdrv
.
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